exactly what all businesses need to learn the customers that flip out at you even when you do the right thing are customers you dont want to have anyway and youve got a solid story document these things well to refute any bs yelpgoogleetc reviews by the asshole types our old mechanic did a tranny flush on my wifes car when we picked it up he asked us over to take a look at a spot on the headliner that he thought he might have made turned out it was an accidental brush with eyeliner or some such from earlier but he was willing to go out of his way to make sure it was resolved even while not knowing if it was his fault i was pretty sad when we moved away